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Phenom II steppings and max OC 550-940 - Page 269

post #2681 of 2829
you can raise your multi as high as you like!! but try 17X200 an see how that goes on stock volts.
I try an keep my temps below 55c because anything above that I have trouble with it crashing though the max temp for your cpu is 62c.
If you can get 17x200 to pass 1 hour of occt with good temps try for 17.5x200.
I suggest you try the x550 club they will give you good advice about raising your NB an such. To give you an idea i run my 550 at 1.45 volts 3.85ghz with a NB @ 2650mhz. This chip is fun to overclock so have fun an good luck!
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Frank
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post #2682 of 2829
is google spread sheets down? i can't view it
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post #2683 of 2829
Thread Starter 
Works just fine here
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post #2684 of 2829
Oh man its been awhile. My main pc has been out of commission for sometime but im back at it again this time with a different motherboard. So far i hit a stable 4ghz on the 940BE with regular water cooling no peltier this time. When i get home later today i will probably run a few more tests and post my resaults.
5ghz =)
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5ghz =)
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post #2685 of 2829
Hi i have a a790gx-a mobo and a phenom x4 ii 940 with 4gb ddr2 1066 patriot viper ii ram.
i have it oc to 3.8 stable but can not reach 3.9 or 4.0 can you tell me whats holding me back, thanks
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post #2686 of 2829
Quote:
Originally Posted by kirasimo View Post
Hi i have a a790gx-a mobo and a phenom x4 ii 940 with 4gb ddr2 1066 patriot viper ii ram.
i have it oc to 3.8 stable but can not reach 3.9 or 4.0 can you tell me whats holding me back, thanks
Probably your cooling. I have had to go to very extreme lengths to squeek out those extra 200 or so mhz. 3.8ghz is really good. I could only acheive 4ghz with water cooling and with a foxconn a7da-s mother board.
5ghz =)
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5ghz =)
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post #2687 of 2829
Thread Starter 
It's not only the cooling.
Even with my TECs cooling it to 17C I can't get it to 4GHz stable.
It's mostly depends on the chip itself....
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post #2688 of 2829
True that. I can get my cpu stable on water cooling @ 4ghz and a big part of it has to do with the board i have but im throwing so much voltage at it its not safe. Some chips along these lines just work better than others and it seems like if you want 4ghz you either have to have a good chip or very extreme cooling. Seems like its just the luck of the pick.
5ghz =)
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5ghz =)
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post #2689 of 2829
Phenom II x2 555 Black Edition (Unlocked to Quad Core)
Stepping: ACCAC 1004BPMW
Revision: RB-C3
Clock Speed: 3.8 GHz @ 200 x 19.0
Voltage: 1.42
NB Clock & Voltage: Stock
HTT link & Voltage: Stock
Cooling: Air (CM Hyper 212+)
OS: Windows 7 Home Premium 64 bit

I have tried going up to 4.0 GHz and raising the voltage, but I cannot get it stable. Prime95 ran stable for over 12 hours at these settings.

Screenshots attached.




Edited by Iggy0828 - 2/26/10 at 11:39am
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post #2690 of 2829
Quote:
Originally Posted by Iggy0828 View Post
Phenom II x2 555 Black Edition (Unlocked to Quad Core)
Stepping: ACCAC 1004BPMW
Revision: RB-C3
Clock Speed: 3.8 GHz @ 200 x 19.0
Voltage: 1.42
NB Clock & Voltage: Stock
HTT link & Voltage: Stock
Cooling: Air (CM Hyper 212+)
OS: Windows 7 Home Premium 64 bit

I have tried going up to 4.0 GHz and raising the voltage, but I cannot get it stable. Prime95 ran stable for over 12 hours at these settings.

Screenshots attached.



to get anything stable at those speeds i have had to push 1.55-1.60v or more and thats on water cooling with a peltier / water cooling with full blast ac blowing in it.
5ghz =)
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5ghz =)
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